JP4229503B2 - Speed change operation device for automatic transmission for vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shift operation device for an automatic transmission, and more particularly to a shift operation device for an automatic transmission for a vehicle having an automatic shift operation mode and a manual shift operation mode.
[0002]
[Prior art]
For example, in a vehicle equipped with an electronically controlled stepped or continuously variable automatic transmission, a manual shift operation mode (MT mode) that allows a sense of manual shift operation to run in the normal automatic shift operation mode (AT mode). ) Has been developed in the past.
[0003]
The shift operating device as described above generally has each select position for AT mode, for example, each range position of P, N, D, 3, 2, 1 as disclosed in, for example, Japanese Patent Laid-Open No. 7-32902. The AT mode select gate and the MT mode select gate having the + and-positions for shifting up and down in the MT mode are arranged in parallel. It is equipped with a letter-shaped select gate, and the AT lever for automatic shift running is obtained by turning the select lever back and forth in the AT mode select gate to switch to each select position. Shift up or down by swinging back and forth within the select gate It is formed so as to.
[0004]
[Problems to be solved by the invention]
In the speed change operation device as described above, in the MT mode, the relationship between the movement of the cable and the rod by the normal selection lever operation in the AT mode is cut off, and the manual operation of the selection lever is electrically detected, and the electric signal is used. It is common to perform a shift operation of upshifting or downshifting.
[0005]
In this MT mode, if an external force is applied to the cable or rod due to an external factor, the AT mode shift position may move to a position other than the D range regardless of the select lever. Smooth switching operation cannot be performed.
[0006]
As a countermeasure against this, the applicant of the present patent application transmitted the selection lever shift operation in the AT mode to the selection arm via the arm according to Japanese Patent Application No. 9-134255, and interlocked with the switching operation of the selection lever from the AT mode to the MT mode. Then, the connection between the select lever and the arm is released, the relationship with the select arm in the MT mode is broken, and the slider provided on the arm is moved as the select lever is detached from the arm, so that the fixed side member is moved. By engaging the arm and restraining the movement of the arm, even if some external force acts on the cable, rod, etc. in the MT mode, the AT mode shift position does not move, thereby restoring from the MT mode to the AT mode. Proposed a speed change operation device that can prevent the inability of the vehicle from becoming impossible.
[0007]
An object of the present invention is to provide a shift operation device for an automatic transmission for a vehicle that is compact in size and has high accuracy and excellent operability.
[0008]
[Means for Solving the Problems]
The invention of the shift operation device for an automatic transmission for a vehicle according to claim 1 that achieves the above object is characterized in that a joint is pivotally supported on a pivot shaft and the swing is orthogonal to the pivot shaft. A select lever is pivotally supported via a moving shaft, and a guide pin disposed on the select lever is inserted into a guide hole opened in the lock plate by swinging around the swing shaft. The AT mode position where the operation of the lever is controlled and the MT mode position where the guide pin retracts from the guide hole are switched, and the select lever in the AT mode position is rotated around the rotation axis via the joint. The mode is switched to each select position in the AT mode by moving, and the select lever in the MT mode position is rotated through the joint. In a shift operation device for an automatic transmission for a vehicle in which an upshift and a downshift in an MT mode can be obtained by turning around an axis, an engagement member provided on the select lever and the select lever in an AT mode The rotary shaft provided with a lock pin fitting recess into which the lock lever is retracted in the MT mode position while a lock pin pressing portion formed at an end portion of the engagement member is fitted in the D position. The rotation shaft locking member provided on the engagement member and the lock pin pushing portion formed on the engagement member follow the retraction from the lock pin fitting recess and are fitted into the lock pin fitting recess to rotate. The shaft is prevented from rotating, and the engaging member is retracted from the lock pin fitting recess following the engagement of the engagement member into the lock pin fitting recess so that the rotation shaft can be rotated. Characterized by comprising a lock pin that.
[0009]
According to the first aspect of the present invention, the lock pin pushing portion of the engaging member provided on the select lever is inserted into the lock pin fitting recess of the rotating shaft locking member when the select lever is in the D position of the AT mode. While securing the coupling accuracy with the rotation shaft, when the select lever is swung in the MT mode position, the lock pin is inserted into the lock pin fitting recess following the retraction of the lock pin pushing portion from the lock pin fitting recess. When the rotation shaft locking member is held in the D position in the AT mode and the mode is switched to the AT mode, the lock pin pushing portion of the engaging member is inserted into the lock pin fitting recessed portion maintained in the D position by the lock pin. Thus, the rotation shaft locking member is prevented from rotating during the MT mode travel, and the switching between the AT mode and the MT mode is ensured. Easy-to shift operating device is obtained.
[0010]
According to a second aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the first aspect, the lock pin has a distal end of the lock pin opposed to the engagement member, and the lock pin fitting It is biased in the recess insertion direction and is supported by the lock plate.
[0011]
According to the second aspect of the present invention, the lock pin according to the first aspect can be easily disposed by being urged in the lock pin fitting recess insertion direction and supported by the lock plate.
[0012]
According to a third aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the first or second aspect, in the vehicle width direction, the engagement member projects from the lock pin fitting recess to the lock plate side in the AT mode position. A restricting portion is formed, and the lock plate includes a guide portion that engages with the restricting portion in the vehicle width direction at the AT mode position and restricts the swing around the swing shaft of the select lever. Features.
[0013]
According to the invention of claim 3, since the vehicle width direction restricting portion is formed on the engaging member provided on the select lever, and the guide portion to be engaged with the vehicle width direction restricting portion in the AT mode position is provided on the lock plate. Oscillation around the pivot axis of the select lever in the AT mode is restricted, the select lever operating accuracy in the AT mode is ensured, and the operability of the select lever is improved.
[0014]
According to a fourth aspect of the present invention, in the shift operation device for the automatic transmission for a vehicle according to the third aspect, the guide portion includes a lock plate main body in which the guide hole is opened, and a lower edge separated from the plate main body. A lower opening formed by a second lock plate stretched on the lock plate body, and a lower opening of the select lever of the second lock plate. The vehicle width direction restricting portion insertion port that allows the portion to be inserted into and extracted from the guide portion is cut out.
[0015]
According to the invention of claim 4, the guide portion according to claim 3 can be easily obtained by the lock plate body and the second lock plate, and the vehicle width direction restricting portion from the vehicle width direction restricting portion insertion port of the second lock plate. Can be inserted and extracted, and the swing of the select lever between the AT mode position and the MT motion position is easily achieved.
[0016]
According to a fifth aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the first to fourth aspects, the tip of the lock pin is in sliding contact with the rotating shaft locking member at the AT mode position of the select lever. A lock pin guide groove is provided, and the lock pin guide groove is formed on a lock pin pushing portion in which the lock pin guide groove divided by the lock pin fitting recess is fitted into the lock pin fitting recess in the AT mode position of the select lever. It is characterized by being formed continuously through the formed lock pin contact surface.
[0017]
According to the fifth aspect of the present invention, since the lock pin guide groove with which the tip of the lock pin slides in the AT mode position is provided, the swinging of the rotation shaft locking member in the AT mode can be smoothly achieved, and the select lever can be operated smoothly. Further, the lock pin guide groove divided by the lock pin fitting recess is continuously formed by the lock pin abutting surface formed in the lock pin pushing portion fitted in the lock pin fitting recess, and the select lever in the AT mode. Improved operability.
[0018]
According to a sixth aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the first to fifth aspects, the rotating shaft locking member is fitted with a select lever of an AT mode position, and an MT mode position. And a lever fitting portion for releasing the fitting of the select lever.
[0019]
According to the invention of claim 6, the select lever in the AT mode position is fitted into the lever fitting portion of the rotating shaft locking member, and the relative accuracy between the select lever and the rotating shaft locking member is ensured, thereby improving operability. Is secured.
[0020]
According to a seventh aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the first to sixth aspects, a detent member attached to the select lever and a detent member disposed on the joint are formed on the detent member. AT / MT mode having a holding member that is selectively fitted and biased to one of the AT mode recess and the MT mode recess to selectively hold the select lever in one of the AT mode position and the MT mode position. A holding mechanism is provided, and the engagement member is the detent member.
[0021]
According to the invention of claim 7, since the engaging portion is formed by the detent lever of the AT / MT mode holding mechanism, the parts can be shared, the number of parts can be reduced, and the assembling work can be simplified. At the same time, the shift operation device can be made compact.
[0022]
According to an eighth aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the seventh aspect, the select lever includes a pair of side portions opposed to each other via the rotating shaft and the joint, and the respective side portions. A lever bracket that has an upper surface portion that connects between the upper portions and that accommodates the joint and the rotation shaft, and a lever body that has a lower portion connected to the upper surface portion and includes a grip portion at the upper portion. The detent member is attached to the lower surface of the upper surface of the lever bracket.
[0023]
According to the eighth aspect of the present invention, since the detent member and the joint are disposed in the lever bracket, the AT / MT mode holding mechanism can be made compact, and the speed change operation device can be made compact.
[0024]
According to a ninth aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the eighth aspect, the detent member is in contact with the lower surface of the upper surface of the lever bracket and is fitted between the both side surfaces, and The lever fitting part of the rotating shaft locking member is fitted with the lever bracket in the AT mode position by pins that penetrate both side parts and the detent member and project both ends from each side part. And the mating with the lever bracket in the MT mode position, the fitting with the end of the pin protruding from the lever bracket in the AT mode position, and the mating with the lever bracket in the MT mode position. The pin fitting part which cancels | releases is provided.
[0025]
According to the ninth aspect of the invention, in the AT mode position, the lever bracket is fitted to the lever fitting portion of the rotating shaft locking member, and the end of the pin protruding from the lever bracket is the pin fitting of the lever fitting portion. Since the lever bracket and the rotary shaft locking member are coupled to each other, the coupling accuracy and the coupling strength of the lever bracket and the coupling lever are secured, and the operability of the select lever in the AT mode is secured.
[0026]
According to a tenth aspect of the present invention, in the shift operation device for an automatic transmission for a vehicle according to the eighth or ninth aspect, the detent member includes a contact surface that contacts the lower surface of the upper surface of the lever bracket, and a corresponding contact surface. And a pair of positioning portions that are formed at both ends and respectively abut against both ends of the upper surface portion.
[0027]
According to the invention of claim 10, the contact surface of the detent member is in contact with the lower surface of the upper surface of the lever bracket, and the pair of positioning portions are in contact with both ends of the upper surface of the lever bracket. Bonding strength with the detent member is ensured.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a shift operating device for a vehicle automatic transmission according to the present invention will be described below with reference to the drawings.
[0029]
The speed change operation device in the present embodiment is provided on the floor in the vicinity of the driver's seat, for example, between the driver's seat and the front passenger seat, FIG. 1 is a side view showing the outline, and FIG. 2 is the direction of arrow A in FIG. 3 is a cross-sectional view taken along the line II of FIG. 1 in the AT mode position, and FIG. 4 is a cross-sectional view taken along the line II of FIG. 1 in the MT mode position. The vehicle width direction is shown.
[0030]
Reference numeral 1 in the figure is a first case attached to the floor, and a second case 2 is provided above the first case 1, and the upper surface of the second case 2 is shown in FIG. AT mode select gates 3a having positions for each of the AT modes, for example, P, R, N, D, 3, 2, and 1, and + and-for upshifting and downshifting An MT mode select gate 3b having a position is arranged in parallel, and a substantially H-shaped select gate 3 comprising a communication gate 3c that connects these gates 3a to 3b is formed in an opening, so that the + of the MT mode select gate 3b is formed. An up switch SWu and a down switch SWd are provided corresponding to the positions of and.
[0031]
On the other hand, the first case 1 is rotatably supported by a rotating shaft 5 whose axis extends in the vehicle width direction, and the base end of the cable mounting arm 6 is fixed to the end of the rotating shaft 5. The tip of the cable mounting arm 6 extends downward and is connected to an automatic transmission control device (not shown) by a select cable 6a.
[0032]
A select lever 20 is pivotally supported on the pivot shaft 5 via a joint 10, and a base portion 42 of a detent lever 41 of a detent mechanism 40 is fitted adjacent to the joint 10, and The base portion 42 is integrally supported on the rotating shaft 5 by a pin 45.
[0033]
The joint 10 is shown in FIGS. 3 and 4, and as shown in FIG. 6, a perspective view of the joint 10 alone, and a cylindrical base portion 11 that is rotatably fitted to the rotary shaft 5, and the base portion 11. A swing shaft support portion 12 that extends downward from the swing shaft 5 and is disposed below the rotation shaft 5 and rotatably supports the swing shaft 16 that is orthogonal to the rotation shaft 5 in plan view. The AT / MT is formed so as to extend perpendicularly to the rotary shaft 5 in a plan view from the roller holding portion 13 and the base portion 11 which form an AT / MT mode holding mechanism 30 which will be described later and project above the rotary shaft 5. A mode changeover switch operating lever portion 14 is projected.
[0034]
As shown in FIGS. 2, 3, and 7, the select lever 20 is pivotally supported by the joint 10 via the swing shaft 16, with both branched lower ends sandwiching the joint 10 and extending. A lever body 21 formed by a lever bracket 22 having a substantially U-shaped cross section and a tubular member 23 having a lower portion 23a whose diameter is expanded as shown in FIG. On both sides of the lower portion 23a of the 23, there are formed pin insertion long holes 23b facing each other and extending in the vertical direction, and a hollow grip 24 is provided at the upper end.
[0035]
In the tubular member 23 of the lever body 21, a lower end portion 25a is fitted into the lower portion 23a of the tubular member 23 so as to be movable up and down, and a guide pin 26 projecting at both ends from the pin insertion long hole 23b is held. An operation rod 25 is disposed in which an upper button 25b passes through the tubular member 23 and the grip 24 and is coupled to an operation button 27 that is held at the upper end of the grip 24 so as to be movable up and down. A spring 28 is disposed between the lower end portion 25a of the operation rod 25 and the upper surface portion 22a of the lever bracket 22 and biases the operation rod 25 upward.
[0036]
Accordingly, the select lever 20 is moved in the vehicle longitudinal direction perpendicular to the axis of the rotation shaft 5 by the rotation shaft 5 via the first case 1 and the axis direction of the rotation shaft 5 by the swing shaft 16. When the operation button 27 is pushed downward against the urging force of the spring 28, the guide pin 26 is lowered along the pin insertion long hole 23b. The guide pin 26 is configured to rise along the pin insertion long hole 23b by releasing the pressure.
[0037]
In the lever bracket 22, as shown in FIGS. 3 and 4, the detent member 31 in the present embodiment, which is an engaging member attached to the lever bracket 22, and a holding portion 38 disposed in the joint 10, The AT / MT mode holding mechanism 30 is provided, and the AT / MT mode holding mechanism 30 swings the shift lever 20 between the AT mode position shown in FIG. 3 and the MT mode position shown in FIG. regulate.
[0038]
As shown in the perspective view of FIG. 8 and the side view of the detent member 31 in the direction of arrow B in FIG. 8, the concave portions of the AT mode concave portion 32a and the MT mode concave portion 32b are connected to the lower surface 32, respectively. A ridge 33 is provided at the center of the upper surface, extending in the axial direction of the rotating shaft 5 and protruding upward and toward the cable mounting arm 6. A contact surface 33a that contacts the upper surface portion 22a of the lever bracket 22 from below is formed on the upper surface of the lever bracket 22, and a positioning portion 33b that protrudes so as to sandwich both ends of the upper surface portion 22a of the lever bracket 22 at both ends of the contact surface 33a. Is formed.
[0039]
On the cable mounting arm 6 side of the ridge 33, a rotating shaft locking member provided on the rotating shaft 5 extending upward and on the cable mounting arm 6 side, a detent lever described later in the present embodiment A lock pin pressing portion 34 that fits into the lock pin fitting recess 46 of 41 is formed. The lock pin pressing portion 34 has a lock pin abutting surface 34 a, and a lock plate 50 is provided at the upper end of the lock pin pressing portion 34. A vehicle width direction restricting portion 35 slidably fitted into a guide portion 55 formed in the shaft is formed, and a pin hole 36 extending in the axial direction of the oscillating shaft 16 penetrates in the vicinity of the lower surface 32. .
[0040]
The detent member 31 is inserted between the side surface portions 22b of the lever bracket 22 as shown in a perspective view of FIG. 10 and a side view from the direction of arrow C in FIG. The contact surface 33a is brought into contact with the lower surface, the positioning portion 33b is brought into contact with the end portion of the upper surface portion 22a, and the lever bracket 22 and the detent member 31 are relatively positioned, and the lever bracket 22 is formed on both side surfaces 22b. The detent member 31 is fixed to the lever bracket 22 while being positioned by the pin insertion hole 22c and the pin 37 inserted through the pin hole 36 of the detent member 31. In this fixed state, the positioning portion 33 engages with the end portion of the upper surface portion 22a to ensure the coupling strength, and both end portions 37a of the pin 37 protrude outward from the side surface 22b of the lever bracket 22, respectively. Has been.
[0041]
On the other hand, as shown in FIG. 3, the holding portion 38 includes a spring 39a elastically mounted in a cylindrical portion 13a formed in the roller holding portion 13 formed in the joint 10, and the spring 39a. The roller 39 is formed in pressure contact with the AT mode recess 32 a or the MT mode recess 32 b provided in the lower surface 32.
[0042]
As shown in FIG. 3, the roller 39 is pressed against the AT mode recess 32a of the detent member 31 by the spring 39a to hold the select lever 20 in the AT mode position. On the other hand, as shown in FIG. Is moved to the MT mode position and the roller 39 is pressed against the MT mode recess 32b, whereby the select lever 20 is held at the MT mode position.
[0043]
As shown in FIG. 7, the detent mechanism 40 includes a detent lever 41 having a base 42 attached and supported on the pivot shaft 5, a detent plate 48 and a detent arm 49 attached to the first case 2. .
[0044]
As shown in FIG. 13, the detent lever 41 is inserted into the pin insertion hole 42a as shown in FIG. 3 and the perspective view of FIG. 12 and the arrow D in FIG. A cylindrical base portion 42 fixed to the rotating shaft 6 by a pin 37, a lever fitting portion 43 that protrudes from the base portion 42 and can be fitted to the lever bracket 22, and extends from the lever fitting portion 43. And an arm portion 44 having a detent arm coupling shaft 44a arranged in parallel with the axis of the rotary shaft 5 at the tip.
[0045]
The lever fitting portion 43 protruding from the base portion 42 extends from both ends of the contact portion 43a that contacts the side end of the lever bracket 22 in the AT mode position and the corresponding contact portion 43a, and sandwiches both side portions 22b from the outside. A lock pin fitting recess 46 in which the lock pin pushing portion 34 of the detent member 31 can be fitted into the upper end edge of the abutment portion 43a. A pin fitting portion 43c into which an end portion 37a of the pin 37 protruding from the lever bracket 22 can be fitted is recessed at the edge of the side surface holding portion 43b.
[0046]
Further, the contact portion 43a is formed continuously with the lock pin fitting recess 46 as shown in FIG. 13, and the lock of the lock pin pushing portion 34 fitted into the lock pin fitting recess 46 as shown in FIG. An arc-shaped lock pin guide groove 47 centered on the axis of the rotation shaft 5 that is continuous with the pin contact surface 34a is provided in a recessed manner.
[0047]
As shown in FIG. 7, the detent plate 48 has an arc-shaped concave portion 48a corresponding to each select position for the AT mode, that is, each range position of P, R, N, D, 3, 2, 1 A plurality of detent arms 49 are continuously arranged, and the detent arm 49 is a roller that is pivotally supported by a detent arm coupling shaft 44a of the detent lever 41 and is engageable with a recess 48a formed in the detent plate 48 at the distal end. 49a, and a spring 49c is provided between the detent arm 49 and the detent lever 41 so as to press the roller 49a against the recess 48a.
[0048]
When the select lever 20 is in the AT mode position, as shown in FIG. 14, the side end of the lever bracket 22 abuts against the abutting portion 43a of the lever fitting portion 43, and both side surface portions 22b fit between the both side surface holding portions 43b. At the same time, the lock pin push-in portion 34 of the detent member 31 is fitted into the lock pin fitting recess 46, and both end portions 37a of the pin 37 are fitted into the pin fitting portion 43c, respectively. The relative positioning of the lever 41 is performed.
[0049]
On the other hand, by swinging the select lever 20 to the MT mode position as shown in FIG. 4, the lever bracket 22 comes out from between the side surface holding portions 43b as shown in FIG. 15, and the lock pin pushing portion 34 is locked to the lock pin. At the same time, the selection recess 20 and the detent lever 41 can be rotated relative to each other by releasing the engagement between the pin engagement portion 43 c and the both ends 37 a of the pin 37.
[0050]
The lock plate 50 attached to the first case 1 is shown in an attached state in FIGS. 3 and 16, FIG. 17 is a perspective view of the lock plate 50 alone, FIG. 18 is a side view in the direction of arrow E in FIG. FIG. 19 is a cross-sectional view taken along the line II-II in FIG. 18, and FIG. 20 is a cross-sectional view taken along the line III-III in FIG. 18, and the lock plate main body 51 attached to the first case 1 2 A lock plate 54 and a lock pin 56 are provided.
[0051]
The lock plate main body 51 has a substantially crank-shaped cross section that is continuous through a stepped portion 52 that is continuous in an arc shape, and is attached to the first case 1 adjacent to the detent lever 41 and orthogonal to the rotation shaft 5. In addition, a guide hole 53 into which one end of the guide pin 26 in the AT mode position is inserted is opened in the lock plate main body 51 above the stepped portion 52.
[0052]
In the guide hole 53, each range position of P, R, N, D, 3, 2, 1 is arranged in accordance with the select position of the shift lever 20, and a protruding portion is provided between the P position and the R position. N position and D position are successively formed in a staircase pattern at the high position sequentially with respect to the R position, and 3 positions and 2 positions are successively formed in a staircase pattern at the low position with respect to the D position. Are continuously formed in two positions.
[0053]
Therefore, the select lever 20 is selected from the P position to the R position or from the R position to the P position with the rotation shaft 5 as the center by pushing the operation button 27 provided on the grip 24 and lowering the guide pin 26. The selection operation from the R position to the N position, from the N position to the D position, from the 2 position to the 3 position, and from the 1 position and the 2 position is performed without operating the operation button 27, and from the N position to the R position and from the D position. The selection operation from the N position, the D position to the 3 position, and the 3 position to the 2 position is performed by pressing the operation button 27 and lowering the guide pin 26.
[0054]
The second lock plate 54 is substantially arc-shaped and is coupled along the stepped portion 52 of the lock plate 51. When the shift lever 20 is swung from the MT mode position to the AT mode position corresponding to the D position, the detent member A vehicle width direction restricting portion insertion port 54a opened at the lower side so as to allow the insertion of the vehicle width direction restricting portion 35 formed in 31 is formed in a notch corresponding to the D position, and is locked as shown in FIG. A guide portion 55 is formed by the stepped portion 52 of the plate body 51 and the second lock plate 54 so that the vehicle width direction restricting portion 35 is movably engaged, and the vehicle inserted from the vehicle width direction restricting portion insertion port 54a at the D position. The width direction restricting portion 35 is formed so as to move in sliding contact with the back surface of the second lock plate 54 when moving to another position.
[0055]
The lock pin 56 is fitted and supported to the lock plate main body 51 via the pin guide 57 so that the tip 56a can be fitted into the lock pin fitting recess 46 of the detent lever 41 in the D mode position, and the detent lever 41 is supported by the spring 58a. It is urged in the direction that protrudes to the side. Reference numeral 58 b denotes a retaining clip provided on the lock pin 56.
[0056]
According to the lock pin 56, when the select lever 20 is in the AT mode position, the lock pin 56 is brought into the pin guide 57 by the lock pin pushing portion 34 of the detent member 31 inserted into the lock pin fitting recess 46 of the detent lever 41. The detent lever 41 is restrained by the lock pin 56 by being pushed in, and the lock pin push-in portion 34 is retreated from the lock pin fitting recess 46 in the MT mode position, following the retraction of the lock pin push-in portion 34. The lock pin 56 is configured to be fitted into the lock pin fitting recess 46 by the urging of the spring 58a to hold the detent lever 41 in the D position.
[0057]
Further, as shown in FIGS. 21 and 22, a perspective view from the direction of arrow F in FIG. 21 is a surface corresponding to the lower portion of the tubular member 23 and the side surface portion 22 c of the lever bracket 22 of the cover 20 </ b> A covering the lever bracket 22. AT / MT mode change-over switch SW1 is provided, and this AT / MT mode change-over switch SW1 is constituted by, for example, a micro switch, and the shift lever 20 is moved from the AT mode position to the MT mode position or AT mode around the swing shaft 16. The switch lever SW1a of the AT / MT mode switch SW1 is turned ON / OFF by the AT / MT mode switch switch lever 14 of the joint 10 that swings when switching from the position to the MT mode position. The signal is output to the transmission control device Switch the dynamic transmission to the AT mode or MT mode.
[0058]
Next, the operation of the speed change device configured as described above will be described.
[0059]
For example, in the P position in the AT mode, the select lever 20 is regulated to the AT mode position by the engagement of the AT / MT mode holding mechanism 30 and the detent arm 49 and the lock plate 48 as shown in FIG. The shift lever 20 and the detent lever 41 are integrally engaged by the engagement of the lever bracket 22, the detent member 31, the detent lever 41, and the like.
[0060]
That is, the roller 39 is brought into pressure contact with the AT mode recess 32a of the detent member 31 provided on the lever bracket 22 by the spring 39a elastically mounted on the roller holding portion 13 of the joint 10 supported by the rotating shaft 5. The shift lever 20 is held at the AT mode position by suppressing the relative movement between the joint 10 and the lever bracket 22.
[0061]
Further, as shown in FIG. 14, the tip 56a of the lock pin 56 disposed on the lock plate body 51 is pressed against the lock pin guide groove 47 formed in the lever fitting portion 43 of the detent lever 41 by a spring 58a. As shown in FIG. 20, the vehicle width direction restricting portion 35 formed on the detent member 31 is connected to the guide portion 55 while being urged and pressed against the lever bracket 22 via the lever fitting portion 43 of the detent lever 41. The lever bracket 22 is held by being inserted and slidably contacted with the second lock plate 54, and the select lever 20 is more reliably held at the AT mode position at a high precision position.
[0062]
Further, as shown in FIG. 14, the side end of the lever bracket 22 is pressed against the contact portion 43 a of the lever fitting portion 43 of the detent lever 41 by the urging by the lock pin 58, so that both side portions 22 b are on both sides. The lock pin pushing portion 34 of the detent member 31 is fitted into the lock pin fitting recess 46 while being held by the surface holding portion 43b, and the lever bracket 22 is attached to each pin fitting portion 43c formed on the both side surface holding portions 43b. The end portions 37a of the pins 37 projecting from each of the pins 37 are fitted, and the relative position of the lever bracket 22 and the detent lever 41 is securely held.
[0063]
The guide pin 26 is positioned at the P position of the guide hole 53 that opens in the lock plate main body 51, and the roller 49a of the detent arm 49 is engaged with the concave portion 49a corresponding to the P position so that the detent arm 49 and The select lever 20 is held at the P position, and the cable mounting arm 6 attached to the rotating shaft 5 is reliably maintained at the P position.
[0064]
When switching from the P position to another select position, for example, the R, N or D position, the guide button 26 is lowered by pressing the operation button 27 provided on the select lever 20 against the force of the spring 28. Then, the select lever 20 is rotated along the AT mode select gate 3a about the rotation shaft 5 to the R position, the N position, or the D position.
[0065]
In addition, each switch from the N position to the R position, the D position to the N position, the N position to the 3 position, and the 3 position to the 2 position can be performed by pressing the operation button 27 to rotate the shift lever 20 around the rotation shaft 5. Switching operation from R position to N position, N position to D position, 2 position to 3 position, 2 position to 1 position, 1 position to 2 position and 1 position to 2 position Is performed by rotating the shift lever 20 about the rotation shaft 5 in a state where the pressing operation of the operation button 27 is released.
[0066]
In the switching operation to each shift position in the AT mode, the state in which the roller 39 by the AT / MT mode holding mechanism 30 is pressed against the AT mode concave portion 32a of the lever bracket 22 is maintained to hold the select lever 20 in the AT mode position. At the same time, both lock pin guide grooves 47 divided through the lock pin fitting recess 46 are smoothly and continuously formed by the lock pin contact surface 34 a of the detent member 31 fitted into the lock pin fitting recess 46.
[0067]
As a result, the tip 56a of the lock pin 56 disposed on the lock plate body 51 is pressed against the lock pin guide groove 47 formed on the detent lever 41 or the lock pin contact surface 34a of the detent member 31 by the spring 58a. And the vehicle width direction restricting portion 35 of the detent member 31 is slidably guided on the second lock plate 54 so that the lever bracket 22 is positioned in the AT mode position with high accuracy while maintaining the rotation axis. The selection operation is performed in combination with the moderation holding function to the selection position where the roller 49a of the detent arm 49 is engaged with the recess 48a corresponding to each shift position. The cable mounting arm 6 swings through the rotating shaft 5 by the switching operation of the select lever 20. Automatic transmission is controlled by the select cable 6a.
[0068]
On the other hand, switching from the AT mode to the MT mode is performed by swinging the select lever 20 around the swing shaft 16 along the communication gate 3c to the MT mode select gate 3b while the select lever 20 is in the D position in the AT mode. By moving, the AT mode position shown in FIG. 3 is switched to the MT mode position shown in FIG.
[0069]
The guide pin 26 is retracted from the guide hole 53 of the lock plate 48 and the detent member insertion port 54a of the second lock plate 54 as the select lever 20 is swung in accordance with the switching from the AT mode position to the MT mode position. The lock pin pushing portion 34 of the detent member 31 attached to the lever bracket 22 is retracted from the vehicle width direction restricting portion insertion port 54 a of the second lock plate 54 and the lock pin fitting recess 46 of the detent lever 41.
[0070]
Following the retraction of the lock pin pushing portion 34, the lock pin 56, whose protrusion is restricted by the lock pin abutting surface 34a, is pushed out by the urging force of the spring 58a and is fitted into the lock pin fitting recess 46 to be locked. The detent lever 41 is fixed to the D position by 56, and the cable mounting arm 6 is maintained at the D position via the rotating shaft 5.
[0071]
When the MT mode position shown in FIG. 4 is reached, the shift lever is formed by fitting and pressing the roller 39 into the MT mode recess 32b of the detent member 31 by a spring 39a elastically mounted on the roller holding portion 13 of the joint 10. 20 is held at the MT mode position, and the AT / MT mode changeover switch operating lever portion 14 formed on the joint 10 is the changeover lever SW1a of the AT / MT mode changeover switch SW1 attached to the side surface of the rotating cover 20A. As a result, the AT / MT mode changeover switch SW1 is actuated and its signal is output to the transmission control device to switch the automatic transmission to the MT mode.
[0072]
In the state switched to the MT mode, as shown in FIG. 15, the lever bracket 22 comes out of the lever fitting portion 43 of the detent lever 41, and the engagement between the lever bracket 22 and the detent lever 41 is released and the lever bracket is released. 22 and the detent lever 41 can be rotated relative to each other.
[0073]
Then, the select lever 20 is swung forward, that is, in the shift-up direction along the MT mode select gate 3b with the rotation shaft 5 as the rotation center, so that the select lever 20 pushes the lever SWua of the up switch SWu. When the up switch SWu is actuated and a shift up signal is output to the transmission control device and the up switch SWu is actuated by the select lever 20, the first speed, the second speed, the third speed,... Shift to a smaller gear ratio side.
[0074]
On the other hand, the up switch SWd is activated by swinging the select lever 20 rearward along the MT mode select gate 3b, that is, in the downshift direction and pushing the lever SWuda of the down switch SWd by the select lever 20. A shift-up signal is output to the transmission control device, and every time the down switch SWd is actuated by the select lever 20, the shift speed is shifted to the gear ratio side that increases in order, such as fourth speed, third speed, second speed,. . That is, the shift up or down operation is executed by operating the select lever 20.
[0075]
To switch from running in the MT mode to the AT mode, in contrast to the above, when the select lever 20 is in the neutral state in the MT mode, the select lever 20 is pivoted along the communication gate 3c to the D position of the AT mode select gate 3b. By swinging around 16, the MT mode position shown in FIG. 4 is switched to the AT mode position shown in FIG.
[0076]
An AT / MT mode changeover switch operating lever portion 14 in which the changeover lever SW1a of the AT / MT mode changeover switch SW1 attached to the cover 20A that rotates in accordance with the changeover from the MT mode position to the AT mode position is formed in the joint 10. The AT / MT mode changeover switch SW1 is actuated and the signal is output to the transmission control device to switch the automatic transmission to the AT mode.
[0077]
Further, as the select lever 20 is swung by switching from the MT mode position to the AT mode position, the lock pin pushing portion 34 of the detent member 31 provided on the lever bracket 22 is locked by the lock pin contact surface 34a. The tip 56a of the second lock plate 54 is inserted into the lock pin fitting recess 48a of the detent lever 41 which is maintained at the D position by the lock pin 56 while being pushed, and enters the detent member insertion port 54a of the second lock plate 54, At the AT mode position where the roller 39 is fitted and pressed into the AT mode recess 32a provided in the detent member 31, the swing of the select lever 20 is stopped to set the D position.
[0078]
In this D position, the roller 39 of the vehicle width direction restricting portion 35 is pressed against an AT mode recess 32a that is recessed in the detent member 31, and the relative rotation between the joint 10 and the lever bracket 22 is suppressed to suppress the select lever 20. Is held at the AT mode position, and the tip 56a of the lock pin 56 disposed on the lock plate main body 51 is urged against the lock pin abutting surface 34a of the detent member 31 by a spring 58a, thereby locking the detent member 31. The pin push-in portion 34 is fitted in the lock pin fitting recess 46, and each end portion 37a of the pin 37 protruding from the lever bracket 22 is fitted in each pin fitting portion 43c formed in the both side surface holding portions 43b. Thus, it can be surely returned to the D position.
[0079]
As a result, in the same manner as described above, the operation of switching to the shift position in the AT mode can be performed by pressing the operation button 27 and turning the select lever 20 to the select position along the AT mode select gate 3a.
[0080]
According to the shift operation device for an automatic transmission for a vehicle according to the present embodiment described above, the AT / MT mode holding mechanism 30 that selectively holds the select lever 20 at the AT position and the MT position with moderation is provided on the lever bracket 22. It is compactly formed by the attached detent member 31 and the roller 39 etc. held by the joint 10 and is housed in the lever bracket 22 to obtain a smaller and lighter speed change device, and the detent member 31 and the roller 39 etc. The dedicated mounting member to be held is omitted, and the structure can be simplified.
[0081]
Further, in the AT mode position, the lever fitting portion 43 of the detent lever 41 holds the lever bracket 22 by the urging by the lock pin 58, and the detent member 31 is fitted in the lock pin fitting recess 46, and both side surfaces Each end 37a of the pin 37 protruding from the lever bracket 22 is fitted to each pin fitting portion 43c formed in the holding portion 43b, and the relative position of the lever bracket 22 and the detent lever 41 is maintained with high accuracy. Following the withdrawal of the detent member 31 accompanying the swing of the select lever 20 for switching from the AT mode position to the MT mode position, the lock pin 56 is fitted into the lock pin fitting recess 46 and the detent lever 41 is kept fixed at the D position. By switching from MT mode position to AT mode position As the retract lever 20 swings, the detent member 31 is inserted into the lock pin fitting recess 46 of the detent lever 41 in a state of being held at the D position by the lock pin 56 while pushing the lock pin 56. The detent lever 41 is prevented from rotating during the AT mode traveling, and the switching operation from the MT mode position to the AT mode position can be reliably achieved.
[0082]
Also, an AT / MT mode selector switch SW1 that operates in accordance with switching from the AT mode position to the MT mode position or from the MT mode position to the AT mode position is attached to the cover 20A, and the AT / MT mode selector switch SW1 is set to the AT mode position. Since the actuator 10 is operated by the joint 10 that rotates relative to the select lever 20 between the MT mode position and the MT mode position, a member for attaching and operating the AT / MT mode changeover switch SW1 is not necessary. By providing a plurality of functions, the number of components is reduced, the configuration is simplified, and the manufacturing cost is reduced.
[0083]
In the above embodiment, the detent lever 41 is used as the pivot shaft locking member. However, a member provided with the lock pin fitting recess 46, the lock pin guide groove 47, etc. is pivoted separately from the detent lever 41. The AT / MT mode changeover switch SW1 can be attached to the joint 10 and the AT / MT mode changeover switch operating lever portion 14 can be formed on the cover 20A. The detent member 31 can be integrally formed, and the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention.
[0084]
【The invention's effect】
According to the above-described invention of the shift operation device for an automatic transmission for a vehicle of the present invention, the lock pin pressing portion of the engaging member provided on the select lever is provided on the rotation shaft at the D position in the AT mode. The lock pin fitting recess of the rotating shaft locking member is fitted to ensure the coupling accuracy between the select lever and the rotating shaft, and the lock pin is locked to the lock pin fitting recess following the retraction of the lock pin pushing portion. When the MT is in the MT mode, the rotary shaft is held in the D position via the rotary shaft locking member, and the lock pin is held in the D position by the lock pin when the mode is switched to the AT mode. Inserting the lock pin push-in part of the combined member prevents the rotation shaft from rotating during MT mode travel, ensuring switching between AT mode and MT mode, and shifting with excellent operability Work device is obtained.
[0085]
In addition, by forming the engaging member with the detent lever of the AT / MT mode holding mechanism and forming the rotating shaft locking member with the detent lever of the detent mechanism, it is possible to share components and simplify the configuration. As a result, the assembly work can be simplified as the number of components is reduced.
[Brief description of the drawings]
FIG. 1 is a side view showing an outline of an embodiment of a shift operation device for an automatic transmission according to the present invention.
2 is a side view taken from the direction of arrow A in FIG.
FIG. 3 is a cross-sectional view taken along the line II of FIG. 1 in the AT mode.
4 is a cross-sectional view taken along the line II of FIG. 1 in the MT mode, similarly. FIG.
FIG. 5 is a top view of the second case in the same manner.
FIG. 6 is a perspective view of the joint.
FIG. 7 is a side view of the main part, similarly.
FIG. 8 is a perspective view of a detent member.
FIG. 9 is a side view of the detent member as seen from the direction of arrow B in FIG. 8;
FIG. 10 is a perspective view similarly showing a mounting state of the detent member.
11 is a side view taken from the direction of arrow C in FIG. 10 showing the attachment state of the detent member.
FIG. 12 is a perspective view similarly showing a detent lever.
13 is a perspective view similarly from the direction of arrow D in FIG. 12. FIG.
FIG. 14 is a perspective view showing an engaged state of the lever bracket and the detent lever in the AT mode in the same manner.
FIG. 15 is a perspective view showing an engaged state between the lever bracket and the detent lever in the MT mode, similarly;
FIG. 16 is a side view of essential parts showing the operation in the AT mode in the same manner.
FIG. 17 is a perspective view similarly showing a lock plate.
18 is a side view taken from the direction of arrow E in FIG.
19 is a cross-sectional view taken along the line II-II in FIG.
20 is a sectional view taken along line III-III in FIG.
FIG. 21 is a side view of the AT / MT mode changeover switch mounting structure.
FIG. 22 is a perspective view of essential parts from the direction of arrow F in FIG. 21;
[Explanation of symbols]
1 First case
2 Second case
3 Select gate
5 Rotating shaft
6 Cable mounting arm
10 Joint
11 Base
12 Oscillating shaft support
14 AT / MT mode selector switch lever
16 Oscillating shaft
20 Select lever
21 Lever body
22 Lever bracket
22a Top surface
22b Side part
22c Pin insertion hole
24 grip
25 Actuating rod
26 Guide pin
27 Operation buttons
30 AT / MT mode holding mechanism
31 Detent member (engaging member)
32 Bottom
32a AT mode recess
32b MT mode recess
33a Contact surface
33b Positioning Department
34 Lock pin push-in part
34a Lock pin contact surface
35 Vehicle width direction regulation part
36 pin hole
37 pins
37a end
38 Holding part
39 Laura
39a Spring
40 day tent mechanism
41 Detent lever (rotating shaft locking member)
42 Base
43 Lever fitting part
43c Pin fitting part
44 Arm
46 Lock pin fitting recess
47 Lock pin guide groove
48 day tent plate
48a recess
49 Day Tent Arm
50 lock plate
51 Lock plate body
53 Guide hole
54 Second lock plate
54a Vehicle width direction restriction part insertion port
55 Guide part
56 Lock pin
56a Tip
58a Spring
SWu up switch
SWd down switch
SW1 AT / MT mode selector switch

Claims (10)

A joint is pivotally supported on the pivot shaft, and a select lever is pivotally supported on the joint via a pivot shaft orthogonal to the pivot shaft, with the pivot shaft as the center. An AT mode position in which the guide pin disposed on the select lever is inserted into a guide hole opened in the lock plate by swinging and the operation of the select lever is controlled, and an MT mode position in which the guide pin is retracted from the guide hole And the select lever in the AT mode position is switched to each select position in the AT mode by rotating about the rotation axis through the joint, while the select lever in the MT mode position is switched to Up-shift and down-shift in MT mode can be obtained by turning around the turning axis through the joint. In the shift operation device for a vehicular automatic transmission that,
An engagement member provided on the select lever;
A lock pin fitting recess into which the lock pin push-in portion formed at the end portion of the engagement member is fitted in the D position of the AT mode in the AT mode while the engagement member is retracted in the MT mode position of the select lever. A rotating shaft locking member provided on the rotating shaft,
The lock pin push-in portion formed on the engagement member follows the retraction from the lock pin fitting recess and is fitted into the lock pin fitting recess to prevent the rotation shaft from rotating and the engagement An automatic transmission for a vehicle, comprising: a lock pin that follows the insertion of a member into the lock pin fitting recess and retreats from the lock pin fitting recess to enable rotation of a rotating shaft. Shifting operation device. The lock pin is
2. The vehicle automatic according to claim 1, wherein a tip of the lock pin is disposed opposite to the engagement member and is urged in the lock pin fitting recess insertion direction to be supported by the lock plate. A gear shifting operation device for a transmission. The engaging member is
In the AT mode position, a vehicle width direction restricting portion protruding from the lock pin fitting recess to the lock plate side is formed,
The lock plate
3. The guide portion according to claim 1, further comprising a guide portion that engages with the vehicle width direction restricting portion in the AT mode position to restrict swinging about the swing axis of the select lever. A shift operation device for an automatic transmission for a vehicle. The guide part
A lock plate body in which the guide hole opens;
The lower edge is a gap formed by the second lock plate that is spaced from the plate body and is stretched on the lock plate body, and the lower part is an open gap. 4. The automatic transmission for a vehicle according to claim 3, wherein a vehicle width direction restricting portion insertion port that allows the vehicle width direction restricting portion to be inserted into and extracted from the guide portion is formed in a notch. Shifting operation device. The rotating shaft locking member is
A lock pin guide groove with which the tip of the lock pin slides in the AT mode position of the select lever is provided.
The lock pin guide groove is
A lock pin guide groove divided by the lock pin fitting recess is continuously formed via a lock pin abutting surface formed in a lock pin pushing portion fitted in the lock pin fitting recess in the AT mode position of the select lever. The shift operation device for an automatic transmission for a vehicle according to any one of claims 1 to 4. The rotating shaft locking member is
The automatic transmission for a vehicle according to any one of claims 1 to 5, further comprising a lever fitting portion that engages a select lever in the AT mode position and releases a fit of the select lever in the MT mode position. Operating device. The detent member attached to the select lever, and the selective lever is selectively fitted and urged into one of the AT mode recess and the MT mode recess formed in the detent member and disposed in the joint. An AT / MT mode holding mechanism having a holding member that is selectively held at one of the AT mode position and the MT mode position;
The shift operation device for an automatic transmission for a vehicle according to any one of claims 1 to 6 , wherein the engagement member is the detent member. The select lever is
A lever bracket that accommodates the joint and the pivot shaft in a substantially U-shaped cross section having a pair of side portions facing each other via the pivot shaft and the joint, and an upper surface portion that connects the upper portions of the side portions;
A lower body connected to the upper surface part, and a lever body provided with a grip part on the upper part,
The shift operation device for an automatic transmission for a vehicle according to claim 7, wherein the detent member is attached to a lower surface of the upper surface portion of the lever bracket. The detent member is
Attached to the lever bracket by pins that abut against the lower surface of the upper surface of the lever bracket and fit between the both side surfaces, and penetrate both side surfaces and the detent member, and both ends protrude from the side surfaces,
The lever fitting portion of the rotating shaft locking member is
Mating with the lever bracket in the AT mode position and releasing the fitting with the lever bracket in the MT mode position,
9. A pin fitting portion that fits with an end portion of the pin protruding from the lever bracket in the AT mode position and releases the fitting with the lever bracket in the MT mode position. A shift operation device for an automatic transmission for vehicles according to the description. The detent member is
A contact surface that contacts the lower surface of the upper surface of the lever bracket;
The shift operation device for an automatic transmission for a vehicle according to claim 8 or 9, further comprising a pair of positioning portions formed at both ends of the contact surface and respectively in contact with both ends of the upper surface portion.

Images